The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 417
Hash: 6f5fa7af5597433f2e5ef4d775092122178f649ba5b7b8e43d225aa4b6b8bf72
Previous block: 11eed10e6fca9710fea7146a41b7452362b8142b41d85c1cf15269170c7cac86
Next block: 5257966162a28030f0ff14f6c97c0e16832f63ebcab50ae7ec6844b229edeefc
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701864213
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: bc2fe1f8b3ed6221b2ffd7316517e1d36d068848dfcb691d8da069ce85fd6419
Median time: 1701864212
Difficulty: 4.656542373906925e-10
Confirmations: 1827
Chainwork: 0000000000000000000000000000000000000000000000000000000000000344
Bits: 207fffff